Bump to 1.5.0rc3

[forsyth2]

Summary

Objectives:

• Bump to 1.5.0rc3

Select one: This pull request is...

• a bug fix: increment the patch version
• a small improvement: increment the minor version
• a new feature: increment the minor version
• an incompatible (non-backwards compatible) API change: increment the major version

Small Change

• To merge, I will use "Squash and merge". That is, this change should be a single commit.
• Logic: I have visually inspected the entire pull request myself.
• Pre-commit checks: All the pre-commits checks have passed.

[forsyth2]

zstash rc3

Release process notes:

Step 1: testing

cd ~/ez/zstash
git status
# Check for uncommitted changes
git fetch upstream
git checkout main
git reset --hard upstream/main
git log
# Last commit: Improve tests (#393)
# Good, matches https://github.com/E3SM-Project/zstash/commits/main/
# Good, hashes match
nersc_conda # Activate conda
conda clean --all --y
conda env create -f conda/dev.yml -n zstash_dev_20251017_eod
conda activate zstash_dev_20251017_eod
pre-commit run --all-files
python -m pip install .

Testing was completed as part of #393

Step 2: Bump versions

Step 2a: Confluence

Update https://e3sm.atlassian.net/wiki/spaces/DOC/pages/129732419/Packages+in+the+E3SM+Unified+conda+environment:

• E3SM Unified 1.11.0: zstash v1.4.4
• E3SM Unified 1.11.1: zstash v1.4.4
• E3SM Unified 1.12.0: zstash v1.5.0 (We updated this when we made rc1)

Step 2b: zstash repo

git fetch upstream main
git checkout -b v1.5.0rc3 upstream/main
tbump 1.5.0rc3 --no-tag
# Makes the commit, but doesn't push because our branch name isn't `main`
# Strangely, it doesn't give a warning about that this time.
git grep -n "1\.5\.0rc3" | cat
# setup.py:5:    version="1.5.0rc3",
# tbump.toml:5:current = "1.5.0rc3"
# zstash/__init__.py:1:__version__ = "v1.5.0rc3"
#
# setup.py:5:    version="1.4.4",
# tbump.toml:5:current = "1.4.4"
# zstash/__init__.py:1:__version__ = "v1.4.4"
#
# Yes, these match up with changes in https://github.com/E3SM-Project/zstash/pull/359
git push upstream v1.5.0rc3
# Follow example of https://github.com/E3SM-Project/zstash/pull/392
# Create, add "Update version" label" to, and merge https://github.com/E3SM-Project/zstash/pull/394

git fetch upstream
git checkout main
git reset --hard upstream/main
git tag -a v1.5.0rc3 -m "v1.5.0rc3"
git branch -D v1.5.0rc3
git push upstream v1.5.0rc3

v1.5.0rc3 now appears on Tags but not on Releases. Good, this is expected.

Step 2c: zstash-feedstock repo

cd /global/homes/f/forsyth/zstash-feedstock
curl -sL https://github.com/E3SM-Project/zstash/archive/v1.5.0rc3.tar.gz | openssl sha256
# SHA2-256(stdin)= 5f039b176f6c5a63b42b6ce330bcb7291ce3753713218bfa40edaf9a2320ef1d
git status
# Check for uncommitted changes
git fetch upstream dev
git checkout -b v1.5.0rc3 upstream/dev
emacs recipe/meta.yaml
# In `recipe/meta.yaml`, update the version and sha256 (and the build number if needed):
# {% set version = "1.5.0rc3" %}
# sha256: ... # The sha256 from the previous step
# number: 0 # build >>> number should always be 0
#
git add -A
git commit -m "v1.5.0rc3"
git push forsyth2 v1.5.0rc3
# Follow example of https://github.com/conda-forge/zstash-feedstock/pull/17

Created conda-forge/zstash-feedstock#18